:root{--bg: #0b1220;--panel: #111b2e;--text: #e7eefc;--muted: #a9b7d4;--accent: #4ea1ff;--danger: #ff5a6a}html,body{height:100%}body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,Noto Sans,Liberation Sans,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--accent)}.container{max-width:720px;margin:48px auto;padding:0 16px}.panel{background:var(--panel);border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:16px}.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}label{display:block;font-size:12px;color:var(--muted);margin-bottom:6px}input{width:100%;box-sizing:border-box;padding:10px 12px;border-radius:10px;border:1px solid rgba(255,255,255,.12);background:#ffffff0a;color:var(--text);outline:none}input:focus{border-color:#4ea1ff8c}button{background:var(--accent);color:#08101e;border:0;border-radius:10px;padding:10px 14px;font-weight:700;cursor:pointer}button:disabled{opacity:.6;cursor:not-allowed}.banner{margin-bottom:12px;padding:10px 12px;border-radius:10px;border:1px solid rgba(78,161,255,.35);color:var(--muted)}.error{margin-top:10px;color:var(--danger);white-space:pre-wrap}